Well point and strainer.



M. W. SMITH.

WELL POINT AND STE/NER- APPLICATION FILED SEPT. I, 1915.

Patented Aug. 14:, 1917.

INVENTOR ATTORNEY MARVIN W. SMITH, or CANTON, SOUTH DAKOTA.

WELL POINT AND STRAINER.

Specification of Letters Patent.

Patented A11 14%, 1917.

Application filed September 1, 1915. Serial No. 48,473.

T 0 all whom it may concern:

Be it known that I, MARVIN W. SMITH, a citizen of the United States, residing at Canton, in the county of Lincoln and State of South Dakota, have invented certain new and useful Improvements in lVell Points and Strainers, of which the following is a specification.

My invention relates to the class of earth boring and more particularly to a penetrating member and strainer for use in sinking wells and the like.

My invention has as its primary object the provision of a new and simple penetrating tool having a perforated body, and a strainer in position therein and to prevent ingress of foreign materials.

Another object of my invention is to provide a device of the class above mentioned having perforations therein which are formed in such a manner as to prevent clogging of the strainer.

Vith the above and other objects in view my invention resides preferably in the construction, combination and arrangement of parts as hereinafter set forth in the specification and illustrated in the accompanying drawings, in which Figure 1 is a longitudinal sectional view of the penetrating tool embodying the improvements of my invention.

Fig. 2 is a similar view of the tubular outer casing.

Fig. 3 is a side elevation of the strainer.

Fig. 41 is a transverse sectional View taken on the line 4. 1 of Fig. 1, looking in the direction of the arrows, and

Fig. 5 is a side elevation of the penetratin member.

bimilar reference characters designate similar parts throughout the various views of the drawing.

In the drawing, wherein the preferred embodiment of my invention is illustrated, I provide a tubular casing 1 having a threaded extremity 2 for the reception of a connecting nipple 3. The penetrating member comprises a square tapering block i, having a circular flange 5 formed on the larger extremity thereof. The tubular member 1 is connected with the penetrating element a by means of a transverse pin 6 having a threaded extremity for reception in openings 7 and 8 formed in the flange 5 and tubular member 1 respectively. The tubular member 1 is provided with a plurality of apertures 9, said apertures being diagonally disposed in the wall of the tubular member 1. It is essential that these openings be placed as shown in the drawing, that is, opening on the outer surface tubular member 1, in such a manner as to prevent ingress of foreign matter while performing a boring operation.

The tubular housing or body 1 serves to protect a strainer 10 having a closing cap 11 at one extremity thereof and a retaining band 11 at the opposite extremity thereof. A strengthening band 12 may be disposed intermediate the length of the strainer 10 in order to strengthen the same and prevent clogging. The band 11 may be soldered or otherwise secured to the screen 10. end cap 11 is provided with a plurality of perforations through which connecting and strengthening loops 13 and 1 1 are adapted to extend the free extremities of said loops being overlapped and adapted to receive the pin 6 as shown to advantage in Fig. 1. The bands surrounding the strainer 10 serve to maintain the same in spaced relation with the inner surface of the tubular housing, permitting of a large area for the accommodation of liquid of any kind which is struck in the course of boring.

Attention is directed to the square tapered penetrating member 1. I have found this to be the most advantageous form of penetrating head for use in connection with the housing provided. It will be noted that the .peculiar disposition of the openings 9 obviates the clogging of the strainer without interfering with the ingress of liquid. It will be noted that the cap 11 abuts the flange 5 and thereby prevents wabbling of the strainer.

While I have shown and described my invention as possessing a peculiar form and construction, it is desired that it be understood that I may make such changes in the details thereof that do not depart from the spirit and scope of the invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A device as specified, including a tubular perforated body, a penetrating head on one extremity of said body, connecting means for said head and body, a strainer in said housing, spacing bands associated with said strainer, an end cap therefor, and loops The carried by said strainer adapted for connection with the head and body to prevent displacement of said strainer.

2. A Well point including a penetrating head, a tubular body mounted on the penetrating head, said body having obliquely disposed apertures, a stud for securing the body to the head, a screen Within the body, a spacing head at one end spacing rings between the screen and the tubular body and connecting loops arranged to be secured to the stud for retaining the screen in position.

In testimony whereofzI affix my signature in presence of two Witnesses.

MARVIN W. SMITH.

Witnesses:

M. H. SKARTVEDT, JOHN EGELAND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

* Washington, D. 0. 

